对象没有属性“保存”Django [英] object has no attribute 'save' Django

问题描述

不知道该怎么处理这个错误。如何使用Post方法从表单中添加数据？

Don't know what to do with this error. How to add data in SQL from forms using post method?

models.py

models.py

class Lala(models.Model):
    PRIORITY_CHOICES = ( 
        (0, '1'),
        (1, '2'),
        (2, '3'),
        (3, '4'),
     )
    name = models.CharField(max_length=20)
    date = models.DateField()
    priority = models.CharField(max_length=1, choices=PRIORITY_CHOICES)

Views.py

def add (request):
    if request.method == 'POST': # If the form has been submitted...
        form = AddLala(request.POST) # A form bound to the POST data
        if form.is_valid():
            newform = form.save()

Form.py

class AddLala(forms.Form):
    PRIORITY_CHOICES = ( 
        (0, '1'),
        (1, '2'),
        (2, '3'),
        (3, '4'),
     )
    name = forms.CharField(max_length=100)
    date = forms.DateField()
    priority = forms.CharField(max_length=1, widget=forms.Select(choices=PRIORITY_CHOICES))

add.html

<form target="upload_frame" action="" method="post" enctype="multipart/form-data" >
 {% csrf_token %}
    {{ form.as_p }}<br>
    <input type="submit" name="submit" value="Upload" id="submit">
</form>

urls.py

  (r'^add/$', 'QA.QAtool.views.add'),
   (r'^addLala/$', 'QA.QAtool.views.addLala'),

所以，我可以添加数据到数据库，如果我去下一个方法 - 只需添加

So, I can Add data to DB, if I go next way - Just add

 lala = Lala(id=None, name='teststep3', date='1943-12-12', priority='High') 
 lala.save()

有人请帮我解决这个问题。我花了3天试图弄清楚什么是错误的，在djangoproject上阅读文档等等。我真的不明白什么是错误的，我看到form.save（）作为一个标准的方法，但不是我的。

Guys please help me with this issue. I spent 3 days trying to figure out whats wrong, reading documentation on djangoproject, etc. I really don't understand whats wrong, everywhere I see form.save() as a Standard method, but not for me.

推荐答案

尝试使用ModelForm而不是Form：

Try using a ModelForm instead of a Form:

class Lala(models.Model):
    PRIORITY_CHOICES = ( 
        (0, '1'),
        (1, '2'),
        (2, '3'),
        (3, '4'),
     )
    name = models.CharField(max_length=20)
    date = models.DateField()
    priority = models.CharField(max_length=1, choices=PRIORITY_CHOICES)

在forms.py:

from django import forms

class LalaForm(forms.ModelForm):
    class Meta:
        model = Lala

然后在视图中，您现有的代码应该（几乎）覆盖：

Then in the view your existing code should (pretty much) cover it:

def add (request):
    if request.method == 'POST': # If the form has been submitted...
        form = LalaForm(request.POST) # A form bound to the POST data
        if form.is_valid():
            form.save()    # saves a new 'Lala' object to the DB

查看ModelForm的文档此处。

Check out the docs for ModelForm here.

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